CA2180007A1 - Non-radiating enclosure - Google Patents
Non-radiating enclosureInfo
- Publication number
- CA2180007A1 CA2180007A1 CA002180007A CA2180007A CA2180007A1 CA 2180007 A1 CA2180007 A1 CA 2180007A1 CA 002180007 A CA002180007 A CA 002180007A CA 2180007 A CA2180007 A CA 2180007A CA 2180007 A1 CA2180007 A1 CA 2180007A1
- Authority
- CA
- Canada
- Prior art keywords
- cable
- plates
- enclosure
- aperture
- slots
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0018—Casings with provisions to reduce aperture leakages in walls, e.g. terminals, connectors, cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
- H01R12/771—Details
- H01R12/775—Ground or shield arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Cable Accessories (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
A stack of closure plates with slots are slipped over a cable passing through an aperture in a wall of a radiation containment enclosure and affixed to the enclosure wall. The slots of the plates are staggered with alternate plates bearing on opposite sides of the cable to secure the cable and impede leakage of radiation through the aperture and along the cable.
Description
wo 95/26Q1 ~ 1 8 ~ ~ ~ 7 PCTIU~g~/l 1332 NON-RADLATING ENCLOS~ E
Brief '' ,, of the I~ liv~
This invention relates to r~nn(~cfinF to electrical ~Ja-aLus within a radiation crntqininF enclosure.
It is ~.,. I ;...."1 desired to reduce the broadcast of ~ radiation from some piece of electrical a~l~aldLus. This may be accomplished by enclosing the radiating ~ Ua~Ui~ in a metal enclosure. Method and alJlJ~aLus according to this invention provides for ,r~nn~rtinF a~ uaiu~ 80 enclosed to ~y~a~al,us outside the enclosure that is effective in avoiding radiation leaks and is both as to rnaterials and in~tqlP~ n labor.
The invention features an aperture in an enclosure wall large enough to permit passage of a connector fitting on the end of a cable, After the connectorfitting is passed through the aperture, a stack of closure plates with slots areslipped over the cable and affixed to the enclosure wall. The slots of the plates are staggered with alternate plates bearing on opposite side of the cable to secure the cable and impede leakage of radiation through the aperture and along the cable.
Brief D~L~ ,t; ~ of the Drawings Figure 1 shows ~ within an enclosure (part of the enclosure shown cut away) connected to a~ u~ outside the enclosure according to the invention.
Figure 2 shows a closure plate used in the invention.
Figure 3 shows in detail the structure of the enclosure of Figure 1 in the vicinity of the place where a cable enters the enclosure.
Detailed D~..~;~li~
The invention may be described with reference to the Figures.
Enclosure 10 has an enclosing wall 11 made of e~ectrically conductive material which defines an interior and e terior space. Electrical a~J~ala~U:~ 12which emits el~ tir radiation, the broadcast of which is undesirable, is situated withm enclosure 10. Another electrical a~ , alu: l 13 outside of enclosure 10 is connected by cable 14 to a~lJ~a~us 12. Cable 14 has the form of a ribbon with parallel conductors 15 Iying side by side and extending the length of the cable. Cable 14 runs into enclosure 10 through closure structure 16 and aperture wo95/26621 Pcrlu~94111332 ~lsoa~7 17 and is ~ d in connector fitting 18, which is smaller than aperture 17.
Closure structure 16 includes a stack 20 of id0ntical closure plates 19. As shown particularly in Figure 2, each closure plate 1g is made from flat metal stock and has a generally rectangular shape with two longer edges 21, 24 arld two shorter edges 22, 25. Slot 23 .. ;. ~ with shorter edge 22, and is wider than ribbon cable 14, but not as wide as connector fitting 18. Slot 23 runs generally parallel to longer edges 21, 24, and is closer to edge 24 than to edge 21.
Holes 26, 27 provide ~ a~;~ for clamping devices.
The~ .. ~.l;.. ~ofa~J~al~llu~12toalJlJ~alu~13isZ .. ~ l.P~asfollows.
Csble 14 is connected at one of its ends to a~Ja~ àlud 13. The other end of cable 14 is ~....;...~Pd im connector fitting 18 Cormector fitting 18 is then passed through aperture 17 into the interior or enclosure 10 and connected to a mating fitting of a~aluts 12. Closure plates 19 are p(.~ ...ed in a stack covering aperture 17 with cable 14 in the slots of the closure plates, as shown particularly in Figure 3.
The plates are arranged irl the stack in a first and second set with plates of the first and of the second set iul. .l~v~d in the stack. As shown in Figure 3, plates 1g and 30 are members of the first set, and plates 31 and 32 are members of the second set. Although all the plates are identicsl, those of the first set are dilf~ . ~lly oriented in the stack from those of the second set. In 1)~ L. .ll ~, the plates of the second set are rotated 180 degrees around an axis ~ ...l;. ..lzr to the plates with respect to the plates of the first sei. This means that the blind ends of the slots of the plates of the second set will be on opposite sides of the stack from those of the first set, and also that the longer edges that are closer to the slot of the second set of plates will be on the opposite side of the stack from the longer edges which are closer to the slot of the first se~ of plates.
The described arrangement of the plates in the stack produces the ~v,lL~ul~ shown in Figure 3, where the edges of plates of the first set protrudebeyond those of the second set at the bottom while the edges of the plates of the second protrude at the top.
When the plates have been arrsnged as described, the stack is squeezed together by pressing on the protruding edges 80 that the plates of the first set bear ~ WO 95/26621 ~ 7 PCTNS94/11332 ., .
against the bottom of cable 14, while the plates of the second set bear against the top of the cable. Wbile the plates are so squeezed, the stack is affixed to all 11 of enclosure 10 by some clamping device such as screws 28 passing through holes 26 and 27.
Brief '' ,, of the I~ liv~
This invention relates to r~nn(~cfinF to electrical ~Ja-aLus within a radiation crntqininF enclosure.
It is ~.,. I ;...."1 desired to reduce the broadcast of ~ radiation from some piece of electrical a~l~aldLus. This may be accomplished by enclosing the radiating ~ Ua~Ui~ in a metal enclosure. Method and alJlJ~aLus according to this invention provides for ,r~nn~rtinF a~ uaiu~ 80 enclosed to ~y~a~al,us outside the enclosure that is effective in avoiding radiation leaks and is both as to rnaterials and in~tqlP~ n labor.
The invention features an aperture in an enclosure wall large enough to permit passage of a connector fitting on the end of a cable, After the connectorfitting is passed through the aperture, a stack of closure plates with slots areslipped over the cable and affixed to the enclosure wall. The slots of the plates are staggered with alternate plates bearing on opposite side of the cable to secure the cable and impede leakage of radiation through the aperture and along the cable.
Brief D~L~ ,t; ~ of the Drawings Figure 1 shows ~ within an enclosure (part of the enclosure shown cut away) connected to a~ u~ outside the enclosure according to the invention.
Figure 2 shows a closure plate used in the invention.
Figure 3 shows in detail the structure of the enclosure of Figure 1 in the vicinity of the place where a cable enters the enclosure.
Detailed D~..~;~li~
The invention may be described with reference to the Figures.
Enclosure 10 has an enclosing wall 11 made of e~ectrically conductive material which defines an interior and e terior space. Electrical a~J~ala~U:~ 12which emits el~ tir radiation, the broadcast of which is undesirable, is situated withm enclosure 10. Another electrical a~ , alu: l 13 outside of enclosure 10 is connected by cable 14 to a~lJ~a~us 12. Cable 14 has the form of a ribbon with parallel conductors 15 Iying side by side and extending the length of the cable. Cable 14 runs into enclosure 10 through closure structure 16 and aperture wo95/26621 Pcrlu~94111332 ~lsoa~7 17 and is ~ d in connector fitting 18, which is smaller than aperture 17.
Closure structure 16 includes a stack 20 of id0ntical closure plates 19. As shown particularly in Figure 2, each closure plate 1g is made from flat metal stock and has a generally rectangular shape with two longer edges 21, 24 arld two shorter edges 22, 25. Slot 23 .. ;. ~ with shorter edge 22, and is wider than ribbon cable 14, but not as wide as connector fitting 18. Slot 23 runs generally parallel to longer edges 21, 24, and is closer to edge 24 than to edge 21.
Holes 26, 27 provide ~ a~;~ for clamping devices.
The~ .. ~.l;.. ~ofa~J~al~llu~12toalJlJ~alu~13isZ .. ~ l.P~asfollows.
Csble 14 is connected at one of its ends to a~Ja~ àlud 13. The other end of cable 14 is ~....;...~Pd im connector fitting 18 Cormector fitting 18 is then passed through aperture 17 into the interior or enclosure 10 and connected to a mating fitting of a~aluts 12. Closure plates 19 are p(.~ ...ed in a stack covering aperture 17 with cable 14 in the slots of the closure plates, as shown particularly in Figure 3.
The plates are arranged irl the stack in a first and second set with plates of the first and of the second set iul. .l~v~d in the stack. As shown in Figure 3, plates 1g and 30 are members of the first set, and plates 31 and 32 are members of the second set. Although all the plates are identicsl, those of the first set are dilf~ . ~lly oriented in the stack from those of the second set. In 1)~ L. .ll ~, the plates of the second set are rotated 180 degrees around an axis ~ ...l;. ..lzr to the plates with respect to the plates of the first sei. This means that the blind ends of the slots of the plates of the second set will be on opposite sides of the stack from those of the first set, and also that the longer edges that are closer to the slot of the second set of plates will be on the opposite side of the stack from the longer edges which are closer to the slot of the first se~ of plates.
The described arrangement of the plates in the stack produces the ~v,lL~ul~ shown in Figure 3, where the edges of plates of the first set protrudebeyond those of the second set at the bottom while the edges of the plates of the second protrude at the top.
When the plates have been arrsnged as described, the stack is squeezed together by pressing on the protruding edges 80 that the plates of the first set bear ~ WO 95/26621 ~ 7 PCTNS94/11332 ., .
against the bottom of cable 14, while the plates of the second set bear against the top of the cable. Wbile the plates are so squeezed, the stack is affixed to all 11 of enclosure 10 by some clamping device such as screws 28 passing through holes 26 and 27.
Claims (11)
1. An enclosure with a wall made of electrically conductive material defining an interior space and an exterior space, there being first electrical apparatus in said interior space connected by a cable to second electrical apparatus in said exterior space, said wall having an aperture for passage of said cable therethrough.
said enclosure including a closure structure comprising a stack of closure plates affixced to said wall and covering said aperture, each closure plate being made from flat metal stock and having a generally flat form and including a slot communicating with the periphery of the closure plate and sized to admit said cable, said closure plates being affixed to said wall in positions such that boundaries of the slots of a first set of plates bear on a first side of said cable and are spaced from a second side of said cable and boundaries of slots of a second set of said plates bear on said second side of said cable and are spaced from said first side of said cable.
said enclosure including a closure structure comprising a stack of closure plates affixced to said wall and covering said aperture, each closure plate being made from flat metal stock and having a generally flat form and including a slot communicating with the periphery of the closure plate and sized to admit said cable, said closure plates being affixed to said wall in positions such that boundaries of the slots of a first set of plates bear on a first side of said cable and are spaced from a second side of said cable and boundaries of slots of a second set of said plates bear on said second side of said cable and are spaced from said first side of said cable.
2. An enclosure as claimed in claim 1, wherein:
said cable is terminated on one end with a connector fitting, said aperture is large enough to permit passing of said connector fitting therethrough, and said slots are not large enough to permit passing of said connector fitting therethrough.
said cable is terminated on one end with a connector fitting, said aperture is large enough to permit passing of said connector fitting therethrough, and said slots are not large enough to permit passing of said connector fitting therethrough.
3. An enclosure as claimed in claim 1, wherein:
caid cable has the form of a ribbon with a plurality of conductors lying beside one another, said plates are of generally elongated form with two parallel edges, and said slot is wider than the thickness of said cable and runs parallel to said parallel edges.
caid cable has the form of a ribbon with a plurality of conductors lying beside one another, said plates are of generally elongated form with two parallel edges, and said slot is wider than the thickness of said cable and runs parallel to said parallel edges.
4. An enclosure as claimed in claim 3, wherein said slot is closer to one of said parallel edges than to the other.
5. An enclosure as claimed in claim 4, wherein plates of said first set are interleaved with the plates of said second set in said stack, and plates of said first set have with respect to plates of said second set an orientation rotated by 180degrees around an axis perpendicular to the plates.
6. A method for connecting a cable between apparatus within an enclosure having a wall made of electrically conductive material defining an interior space and an exterior space and apparatus exterior to said enclosure comprising the steps:
terminating said cable in a connector fitting, providing an aperture in said wall big enough for passage of said connector fitting therethrough, providing a plurality of closure plates, each closure plate made form flat metal stock, and including a slot communicating with the periphery of the closure plate and sized to admit said cable, passing said plug through said aperture, positioning said closure plates in a stack covering said aperture with said cable in said slots so that boundaries of slots of a first set of plates bear on a first side of said cable and are spaced from a second side of said cable and boundaries of slots of a second set of said plates bear on said second side of said cable and are spaced from said first side of said cable, affixing said plates when so positioned to said enclosure wall.
terminating said cable in a connector fitting, providing an aperture in said wall big enough for passage of said connector fitting therethrough, providing a plurality of closure plates, each closure plate made form flat metal stock, and including a slot communicating with the periphery of the closure plate and sized to admit said cable, passing said plug through said aperture, positioning said closure plates in a stack covering said aperture with said cable in said slots so that boundaries of slots of a first set of plates bear on a first side of said cable and are spaced from a second side of said cable and boundaries of slots of a second set of said plates bear on said second side of said cable and are spaced from said first side of said cable, affixing said plates when so positioned to said enclosure wall.
7. A method for electrically connecting between apparatus within a radiation containment enclosure and apparatus outside said enclosure, said enclosure having a wall made of electrically conductive material defining an interior space and an exterior space comprising the steps:
providing a cable with two ends, one of said ends being terminated in a connector fitting, providing an aperture in said wall big enough for passage therethrough of said connector fitting between the interior space and the exterior space, providing a plurality of closure pates, each closure plate made from flat metal stock, and including a slot communicating with the periphery of the closure plate and sized to admit said cable, passing said connector fitting through said aperture so that the ends of the cable are on different sides of said wall, connecting the ends of said cable respectively to said apparatuses, positioning, after said passing step is completed, said closure plates in a stack covering said aperture with said cable in said slots so that boundaries ofslots of a first set of plates bear on a first side of said cable and are spaced form a second side of said cable and boundaries of slots of a second set of plates bear on said second se of said cable and are spaced from said first side of said cable, affixing said plates when so positioned to said enclosure wall.
providing a cable with two ends, one of said ends being terminated in a connector fitting, providing an aperture in said wall big enough for passage therethrough of said connector fitting between the interior space and the exterior space, providing a plurality of closure pates, each closure plate made from flat metal stock, and including a slot communicating with the periphery of the closure plate and sized to admit said cable, passing said connector fitting through said aperture so that the ends of the cable are on different sides of said wall, connecting the ends of said cable respectively to said apparatuses, positioning, after said passing step is completed, said closure plates in a stack covering said aperture with said cable in said slots so that boundaries ofslots of a first set of plates bear on a first side of said cable and are spaced form a second side of said cable and boundaries of slots of a second set of plates bear on said second se of said cable and are spaced from said first side of said cable, affixing said plates when so positioned to said enclosure wall.
8. A method as claimed in claim 7, wherein:
said cable has the form of a ribbon with a plurality of conductors lying beside one another, said plates are of generally elongated form with two parallel edges, and said slot is wider than the thickness of said cable and extends parallel to said parallel edges.
said cable has the form of a ribbon with a plurality of conductors lying beside one another, said plates are of generally elongated form with two parallel edges, and said slot is wider than the thickness of said cable and extends parallel to said parallel edges.
9. A method as claimed in claim 8, wherein said slot is closer to one of said parallel edges than to the other.
10. A method as claimed din claim 7, wherein:
said cable is terminated on one end with a connector fitting, said aperture is large enough to permit passing of said connector fitting therethrough, said slots are not large enough to permit passing of said connector fitting therethrough.
said cable is terminated on one end with a connector fitting, said aperture is large enough to permit passing of said connector fitting therethrough, said slots are not large enough to permit passing of said connector fitting therethrough.
11. A method as claimed in claim 9, wherein:
plates of said first set are interleaved with the plates of said second set in a stack, and plates of said first set have with respect to plates of said second set an orientation rotated by 180 degrees around an axis perpendicular to the plates.
plates of said first set are interleaved with the plates of said second set in a stack, and plates of said first set have with respect to plates of said second set an orientation rotated by 180 degrees around an axis perpendicular to the plates.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/219,067 | 1994-03-29 | ||
| US08/219,067 US5469336A (en) | 1994-03-29 | 1994-03-29 | Non-radiating enclosure including a stack of closure plates having slats staggered about an aperture in a wall of the enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2180007A1 true CA2180007A1 (en) | 1995-10-05 |
Family
ID=22817718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002180007A Abandoned CA2180007A1 (en) | 1994-03-29 | 1994-10-05 | Non-radiating enclosure |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5469336A (en) |
| EP (1) | EP0753243B1 (en) |
| AU (1) | AU678069B2 (en) |
| CA (1) | CA2180007A1 (en) |
| DE (1) | DE69409408T2 (en) |
| WO (1) | WO1995026621A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10208791A (en) * | 1997-01-21 | 1998-08-07 | Canon Inc | Connecting method for inter-frame grounds in casing |
| US5882227A (en) * | 1997-09-17 | 1999-03-16 | Intercon Systems, Inc. | Controlled impedance connector block |
| US20040190232A1 (en) * | 2003-03-31 | 2004-09-30 | Delta Electronics, Inc. | Case for programmable logic controller (PLC) |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2247897A1 (en) * | 1972-09-29 | 1974-04-04 | Siemens Ag | HIGH-FREQUENCY DENSE CABLE ENTRY |
| US4308417A (en) * | 1979-06-19 | 1981-12-29 | International Computers Limited | Electrical sealing device |
| US4351579A (en) * | 1980-11-03 | 1982-09-28 | The Initiators | Clamp for electrical cable and cable terminating system |
| DE3335664A1 (en) * | 1983-09-30 | 1985-04-18 | Siemens AG, 1000 Berlin und 8000 München | Device for the protection of electrical assemblies and components which are contained in a housing against interference resulting from electrical charges and interference currents |
| DE3500655A1 (en) * | 1985-01-10 | 1986-07-10 | Siemens AG, 1000 Berlin und 8000 München | Housing for distributors, especially for telephone systems |
| GB8610665D0 (en) * | 1986-05-01 | 1986-06-04 | Oxley Dev Co Ltd | Filtered electrical connectors |
| GB2212000B (en) * | 1987-10-31 | 1992-02-12 | Marconi Instruments Ltd | Screening assembly |
| GB2217520B (en) * | 1988-04-08 | 1991-10-09 | Stc Plc | Electronic equipment practice |
| GB8812946D0 (en) * | 1988-06-01 | 1988-07-06 | Bicc Plc | Improved circuit board |
| PT97705A (en) * | 1990-07-20 | 1993-07-30 | Ibm | PERSONAL COMPUTER WITH PROTECTION SHIELD OF INPUT / OUTPUT SIGNALS |
| JPH04303998A (en) * | 1991-03-29 | 1992-10-27 | Nec Corp | Shield plate |
| SE469153B (en) * | 1991-09-27 | 1993-05-17 | Ericsson Telefon Ab L M | KOAXIALKABELGENOMFOERING |
| JP2993799B2 (en) * | 1992-06-01 | 1999-12-27 | 積水化学工業株式会社 | Electromagnetic wave shielding material |
| US5334798A (en) * | 1993-01-08 | 1994-08-02 | Allied-Signal Inc. | Interconnect cable with built-in shielding and method of use |
-
1994
- 1994-03-29 US US08/219,067 patent/US5469336A/en not_active Expired - Fee Related
- 1994-10-05 EP EP94931311A patent/EP0753243B1/en not_active Expired - Lifetime
- 1994-10-05 AU AU80134/94A patent/AU678069B2/en not_active Ceased
- 1994-10-05 DE DE69409408T patent/DE69409408T2/en not_active Expired - Fee Related
- 1994-10-05 WO PCT/US1994/011332 patent/WO1995026621A1/en active IP Right Grant
- 1994-10-05 CA CA002180007A patent/CA2180007A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| DE69409408T2 (en) | 1998-10-01 |
| WO1995026621A1 (en) | 1995-10-05 |
| EP0753243B1 (en) | 1998-04-01 |
| AU678069B2 (en) | 1997-05-15 |
| AU8013494A (en) | 1995-10-17 |
| US5469336A (en) | 1995-11-21 |
| DE69409408D1 (en) | 1998-05-07 |
| EP0753243A1 (en) | 1997-01-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3830954A (en) | Apparatus for shielding against electromagnetic interference | |
| US10944215B2 (en) | Connector assembly | |
| US4218578A (en) | RF Shield for an electronic component | |
| US5491300A (en) | Penetrator and flexible circuit assembly for sealed environment | |
| US4287385A (en) | Shielded flat cable | |
| US4130334A (en) | Ground termination and strain relief connector means | |
| US5170008A (en) | External cable grommet for cable entry of EMI protected cabinets | |
| US4721483A (en) | Shielded connector assembly for flat braided cable | |
| US4971574A (en) | Shielded connector assembly for flat cable | |
| US6953897B2 (en) | Device and method for clamping and grounding a cable | |
| KR970004152B1 (en) | Cable shield termination for an electrical connector | |
| US5713748A (en) | Cable grounding and strain relief apparatus | |
| US5668509A (en) | Modified coaxial to GCPW vertical solderless interconnects for stack MIC assemblies | |
| TW326585B (en) | System for terminating the shield of high speed cables(6) | |
| US4641224A (en) | Electromagnetic interference reducing assembly | |
| US3663866A (en) | Back plane | |
| US3818119A (en) | Miniature power bus for printed circuit boards | |
| US4498715A (en) | Cable shield grounding clamp | |
| CA2180007A1 (en) | Non-radiating enclosure | |
| US9153912B2 (en) | Connector backshell for shielded conductors | |
| US20030070837A1 (en) | Wiring connection structure and transmitter using the same | |
| US4627673A (en) | Grounding and strain relief clamp for flat cables | |
| CA1219047A (en) | Cover assembly for electrical connections of a transformer | |
| KR860001097B1 (en) | Distribution head for telecommunications cable | |
| US6660939B1 (en) | Method and apparatus for shield slot signal coupler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |